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libssh2/docs/libssh2_sftp_posix_rename_ex.3
Michael Buckley fb6527468c
sftp: implement posix-rename@openssh.com
Add a new function `libssh2_sftp_posix_rename_ex()` and
`libssh2_sftp_posix_rename()`, which implement
the posix-rename@openssh.com extension.

If the server does not support this extension, the function returns
`LIBSSH2_FX_OP_UNSUPPORTED` and it's up to the user to recover, possibly
by calling `libssh2_sftp_rename()`.

Co-authored-by: Viktor Szakats (bump to size_t)
Closes #1386
2024-06-26 19:31:34 +02:00

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2.1 KiB
Groff

.\" Copyright (C) The libssh2 project and its contributors.
.\" SPDX-License-Identifier: BSD-3-Clause
.TH libssh2_sftp_posix_rename_ex 3 "9 May 2024" "libssh2 1.11.1" "libssh2"
.SH NAME
libssh2_sftp_posix_rename_ex - rename an SFTP file using POSIX semantics
.SH SYNOPSIS
.nf
#include <libssh2.h>
#include <libssh2_sftp.h>
int
libssh2_sftp_posix_rename_ex(LIBSSH2_SFTP *sftp,
const char *source_filename,
size_t source_filename_len,
const char *dest_filename,
size_t dest_filename_len);
.fi
.SH DESCRIPTION
\fIsftp\fP - SFTP instance as returned by
.BR libssh2_sftp_init(3)
\fIsourcefile\fP - Path and name of the existing filesystem entry
\fIsourcefile_len\fP - Length of the path and name of the existing
filesystem entry
\fIdestfile\fP - Path and name of the target filesystem entry
\fIdestfile_len\fP - Length of the path and name of the target
filesystem entry
This function implements the posix-rename@openssh.com extension, which is
useful when, for example, moving files across filesystems on a remote server.
SSH_FXP_RENAME does not specify a specific implementation, but many servers
will attempt to user hard links when moving files using SSH_FXP_RENAME.
If the server does not support posix-rename@openssh.com, this function will
return LIBSSH2_FX_OP_UNSUPPORTED and you can call libssh2_sftp_rename_ex (3) as
a backup.
.SH RETURN VALUE
Return 0 on success or negative on failure. It returns
LIBSSH2_ERROR_EAGAIN when it would otherwise block. While
LIBSSH2_ERROR_EAGAIN is a negative number, it is not really a failure per se.
.SH ERRORS
\fILIBSSH2_FX_OP_UNSUPPORTED\fP - Server does not support
posix-rename@openssh.com
\fILIBSSH2_ERROR_ALLOC\fP - An internal memory allocation call failed.
\fILIBSSH2_ERROR_SOCKET_SEND\fP - Unable to send data on socket.
\fILIBSSH2_ERROR_SOCKET_TIMEOUT\fP -
\fILIBSSH2_ERROR_SFTP_PROTOCOL\fP - An invalid SFTP protocol response was
received on the socket, or an SFTP operation caused an errorcode to
be returned by the server.
.SH SEE ALSO
.BR libssh2_sftp_init(3)